A firm specific analysis of economies of size in the U.S. urban multiservice transit industry

Christopher B. Colburn and Wayne K. Talley

Transportation Research Part B: Methodological, 1992, vol. 26, issue 3, 195-206

Abstract: This paper investigates the long-run cost structure of a specific firm of the U.S. urban multiservice transit industry, thereby permitting inferences to be made to the long-run cost structure of similar firms in the industry. The empirical results indicate that the firm exhibits economies of size over a wide service range. Since cost complementarity does not exist for all service combinations, the results do not support the existence of economies of scope.

Date: 1992
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